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Net Loss per Common Share - Additional Information (Detail)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Net Income Loss Per Common Share [Line Items]    
Companies common stock share outstanding 9,000,000us-gaap_OwnshareLendingArrangementSharesOutstanding  
Antidilutive securities 45,171,595us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 67,791,150us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Shares loaned under the share lending arrangement 9,000,000us-gaap_OwnshareLendingArrangementSharesIssued 9,000,000us-gaap_OwnshareLendingArrangementSharesIssued